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Dynamic Balance Technology:
Dynamic Balance is a proprietary Polk Audio technology using laser imaging to
determine what combination of speaker materials create the least amount of
resonance. Eliminating resonance in speakers results in a wide, smooth response
and low distortion.
Angled Woofer: The LC80FX is
equipped with an 8" Aerated Polypropylene woofer, loaded into the frame at a
fixed 15° angle. This allows you to direct the woofer toward the listening area
when used for front stage (Left, Center, or Right) speakers. When used as rear
surrounds or as 6.1 or 7.1 channel surround back speakers, you can direct the
driver toward the listening area for a more direct sound field, or toward a wall
for a more diffuse sound field.
Dual Tweeters: Each speaker has
dual 3/4" Ring Radiator tweeters for crisp, transparent highs. The ultra-light woven Ring
Radiator Diaphragm delivers flat response, precise detail and overall accuracy.
A High Frequency Waveguide prevents phase cancellations for smooth, uniform
frequency response and wide dispersion. A Low Frequency Waveguide promotes
laminar airflow between chambers to prevent air turbulence. This feature serves
the same function as Power Port for Polk's bass systems. The tweeters are angled
90° away from each other.
Timbre-matched: The speaker is
timbre-matched to the Polk Audio LCi Series for seamless, enveloping imaging
when used in a home theater system. You can mix and match any of the LCi-series
in-wall and in-ceiling speakers with the LCi Series high performance
floor-standing and bookshelf speakers.
Terminals: The speaker features
gold-plated spring post terminals.
Wiring Recommendations: The
gauge of the speaker wire used to connect this speaker depends upon the length
of the run:
- Lengths of up to 25': 18
or 16 gauge
- Lengths between 25' to 50':
16 or 14 gauge
- Lengths between 50' and 75':
14 or 12 gauge
- Lengths of over 75': 12
Imaging Switch: The LC80FX
offers switchable "Solid" and "Diffuse" imaging patterns to create the surround
effect you desire. A "Diffuse" image is defined as one which creates a "cloud"
of sound, as ambient sounds fill the environment around the listening area. A
"Solid" image is one which creates a more directional, localized, pin-point
Wall Distance Switch: It is
recommended that the speaker be placed more than 2' from a side wall. If
position limitations demand than they be installed less than 2' from a side
wall, the proximity of the surface can result in a response "bump" between 50Hz
and 200Hz, causing the speaker to sound "boomy." The Wall Distance switch
flattens response and tunes out the "boominess" without sacrificing deep bass
Installation: The speaker
requires a cutout diameter of 9-3/8" with a depth of 4-5/8" assuming
1/2" drywall. Once the hole is cut, the speaker can be held in place and the
Rotating Cams can be tightened, allowing you to secure the speaker to the
drywall without any extra assembly. If you will not be mounting the speaker in
drywall, make sure the wall or ceiling material can safely support the weight of
the speaker before installation; the speaker weighs approximately 4 pounds.
Paintable: The grille and
flange can be painted, allowing the speaker to match any décor.
A clear plastic paint mask is included to protect the "unpaintable" speaker
- Overall: 30 Hz-27 kHz
- +/-3 dB Limit: 45 Hz-26 kHz